cigarettes/diahrhea/constpation/bloated

Last saturday I was stressed out and stupidly took up my old habit of smoking cigarettes. On my first cigarette in 11 months after the first few puffs I felt like I was going to have diahrhea. I held it in though and didnt go to the bathroom. I continued to smoke throughout that day smoking close to a pack. Well by the time I left my friends my guts were very cramped up with pain. Ever since then I have been having troubles with my guts. Either I feel bloated full and feel like I have to pass gas but I dont. I have had diahrhea a few times since then. Has anyone experienced this from smoking ciggs besides me? I know this is all from smoking since I have never had any of this bloated feeling before